Hammer-lock for tabulating mechanism.



1. POWERS.

HAMMER LOCK FOR TABULATING MECHANISM.

APPLICATION 111.50 SEPT. 1 1, 1915.

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HAMMER LOCK FOR IABULATING MECHANISM.

APPLECATION HLED SEPT. I 7, I915. 1L,234:,38 w Patented July 24,1917.

2 SHEETS-SHEET 2.

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[raven-fir James ,P w a. a JZZZf y,

[2y I I I if JAMES rownns, or new rows, in Y., nssrsuon To rowsnsnooouu'riue MACHINE COMPANY, or NEW YORK, N. in, A CURPORATION orDELAWARE.

s rains r HAMMER-LOQK FOR TABULATING MECHANISM.

1,23%,385. Specification of Letters Eatent. P t t July 24, 1917,

Application filed September 17, 1915. Serial No. 51,127.

zen oi the United States, residing in York, in the county of New Yorkand State With a plurality of hammers 12 pivotally mounted on the shaft13, which hammers, as illustrated in my copending application Serial No.802,362, filed Nov.. 22, 1918, are rethe spring 26, and due to the slots27, the

of New York, have invented certain new and leased with the actuation oftype-carrying useful Improvements in Hammer-Locks for sectors, a portionof one sector 14: being illusllahulating Mechanisms, of which thefoltratedin Fig. 2. lowing is'a specification. The hammers 12 each havea head 15.

p This invention relates to perforated card The hammers 12 may beobstructed in their in accounting machines, and particularly to anpathof movement by hammer lockslG. The 'choring' means for locking thehammers of hammer locks 16 are preferably disposed in the tabulatingmechanisms of such card acthe path of movement of the hammers 12becounting machines.- fore the hammers l2 acquire their fuli mo The mainobject of the invention is to mentum, that isiirnmediately after hating15 provide means for locking the hammers of, been released. For thispurpose, the frame tahulating mechanisms tor card accounting 17 of thetahulating mechanism A is promachines so that when certain rows of datavided with an extension 18 immediately in are not to heprinted,.ha1nmers correspond the rear of the heads 15 of the hammers 12Ling thereto may be locked. to prevent correon which extension 18 thereis formed a supg0 g fi W t b i t d, port 19 for the hammer locks 16. Thesup- A further object of the invention is to port 19 comprisesessentially two downprovide means whereby to prevent the print \vardlyextending portions 20 which are se-' ing of certainrows of data and yetpermit cured to the extension 18 of the frame 17 the cumulating' of theamounts of such data. and an upper portion 21 provided with a .25 Stillother ohjects oi the invention are to plurality of transverselyextending slots 22 provide a means which can be manufactured preferablydivided into groups as shown in v at lovvcost, is simple inconstruction, can he Fig 3, each group 1.11 the present instanceequipped. on the tabulating mechanism ot havingeightv slots, the slotsto correspond the type illustrated in my copending app1iwith the groupsof hammers 12 that may he 30 cation Serial No. 802,362, filed Nov. 22,1913, equipped on the particular tahulating rnech- 35 withoutreconstruction, and to provide a anisni.

means which can he quickly attached and On the rear face of the upperportion 21 removed from the tabulating mechanism. there is slidablymounted a hammer lock These and other features, capabilities and,securing plate 23 whichhas its upper edge 35 advantages will more fullyappear from the extending up above the bottoms of the slots 9;sub-joined detail description of one specific In the rear of the plate.23 there is proeinhodiment thereof, in Which-- vided a support fastenedto the frame 17, Figure 1 is a fragment-a1 plan view of a and'on therear faceof the plate there is tahulating mechanism equipped with thedeprovided a stop 25 spaced from said supiorming the presentimprovement. port 2& and to em side thereof, there being is a sideelevation, parts being a spring 26 connecting such stop 25 with theaway, and partly'in section, showing support 2 itherehy normally drawingthe a oula s2; meehanisn'r equipped with the plate 23 to one side. Ateach end of the in the present improvement. plate 23 there is provided aslot 27. The 45 Fig, 5 is a rear elevation of a tahulating slots 27 areparallel to one another and are,

mechanism showing" the position'of the deinclined relative to animaginary line passthe present improvement. I ing through the lower endsof the slots 22. Fi's f is an enlargedfragmentalperspec- Through theseslots 2? locking screws 28 tive snowing the support of the present imarepassed andsecured-tothe upper portion 53: provement on which hammerlocks are se- 21 of the support 19, on which the plate 23 clifgd v v .isadapted to ride. At one end of the plate Fig. 5 is adetached perspectiveshowing 23 there is provided a finger piece '29, by one of the hammerlocks. means of which the .plate 23 is adapted to in the presentembodiment, there is probe drawn to one side'against the tension of 55vided a tabulating mechanism A. equipped.

. piece :51 at its rear end, the lower edge 32 of the sheet beingsubstantially straight and being provided with a notch 33 near thefinger piece 31. The notches 33 of the hannner locks 16 are all equallydistanced from the rear linger pieces 31. For securing the hammer locks16 in the slots 22 of the support 19. outof hammer locking position, the

notches will engage the upper edge of the securing plate 23. Foranchoring the hammer locks 16 on the support 19, the plate 31 isprovided which is fastened to the upper face of the upper portion 21 ofthe support 19 and extends between the finger pieces 30 and 31 of thehammer locks 16. In hammer locking position, the locks 16 are movedforwardly, as shown in Fig. 2, so that their front ends extend intothepath of movement of the heads 15 of the hammers 12. hen the notches33 of the locks 16 are engaged by the securing plate 23, it will benecessary to first remove the plate 23 out of such notches before thehammer can be moved into locking position. This is done by grasping thefinger piece 29 and moving the plate to one side, the slots 27 in suchmovement drawing the plate 23 downward out of the notches EIhereupon,those hammer locks 16 desired to be moved, may be moved forward bymanipulation of the finger pieces 30 or 31 or both, so that the edge 32of the moved hammer lock will be disposed out of the path of movement ofthe plate 23, and then, upon the release of the plate 23, the

spring 26 will return the plate 23 to normal position above the bottomsof the slots 22 and engage the notches 33 of those locks 16 which hadnot been moved forwardly. In theforward position or hammer lockingposition of the locks 16, as shown in Fig. 2, the lower front ends ofthelocks 16 will be disposed in the paths of movement of the heads 15 ofthe hammers 12. The position of the hammers 12 in looking position ispreferably such that it will obstruct the hammers 12 immediately afterthey are released and before they have acquired their full momentum.

It is obvious that various changes and modifications may be made to thedetails of construction without departing from the general spirit orscope of the present invention.

I claim:

1. In a tabulating mechanism having a plurality of hammers pivotallymounted, a

support, a plurality of plates forming hainmer locks mounted on saidsupport and adapted to be moved into the path of movementofsaid hammersto prevent their operation, and means for anchoring said plates eitherin hammer locking position or in idle position.

2. In a tabulating mechanism having a plurality of hammers pivotallymounted, a

support, a plurality of plates forming hammer locks mounted on saidsupport, there being notches on said plates, and a securing plateadapted to engage said notches when said plates are in idle positionthereby to secure them in said idle position, the hammer locking platesbeing movable into the. path of movement of said hammers to preventtheir operation, the securing plate also coiiperating with said hammerlocking plates when in hammer locking position to anchor them in suchposition.

3. In a tabulating mechanism having a plurality of hammers pivotahymounted, a support, a plurality of plates forming hammer locks mountedor. s id support, there being notches on said plates, a securing plateadapted to engage said .notches when said plates are in idle position, aspring for normally maintaining said plate in notchengaging position,and means for guiding said securing plate out of notch-engaging positionwhen said plate is actuated to release said hammer locks.

4. In a tabulating mechanism having a plurality of hammers pivotallymounted, a support, a plurality of plates forming hammer locks mountedon said support, there being notches on said plates, a securing plateadapted to engage said notches when said plates an in idle position, aspring for normally maintaining said plate in notchengaging position,there being inclined slots in said securing plate, and means disposed onsaid support and passing through said slots so that when said securingplate is actuated to release said hammer locks it will be moved out ofnotch-engaging position.

5. In a tabulating. mechanism having a plurality of hammers pivotallymounted, a support, a plurality of plates forming hammer locks mountedon said support, there being notches on said plates, a securing plateadapted to engage said notches when said plates are in idle position, 'aspring for nor mally maintaining said plate in notch-engaging position,there being inclined slots in.

said securing plate, means disposed on said support and passing throughsaid slots, and a finger piece at one ,end of said securing plate bymeans of which said securing plate may be grasp-d when it isde'sircd toactuate the same.

6. In a tabulating mechanism having a plurality; of hammers pivotallymounted, a support, a plurality of plates forming hamr adapted to bemoved eration, an upwardly extending finger piece at each end of ahammer lock, and an anchoring plate for anchoring said hammer locks onsaid support, said anchoring plate being secured tosaid support andextending between the finger pieces.

7. In a tabulating mechanismhaving a plurality of hammers pivotallymounted, a supdport, there being -a plurality of slots in em ing hammerlocks disposed in said slots and into the path of movement of eration.

8. Inatabulating mechanism having a plurality of hanuners pivotallymounted, a support, there being a plurality of slotsin "sald support, aplurality ofplates forming hammer locks dISPOSGd in said slots andadapted to be moved into the path of move support, and a plurality ofplates form- 'eration, there and hammers to prevent their opment of saidhammers to prevent'their operation, an upwardly extending finger pieceat each end of a hammer lock, and an anchoring plate for anchoring saidhammer locks on said support, said anchoring plate being secured to saidsupport and extending between the finger pieces.

9. In a tabulating mechanismhaving a plurality of hammers pivotallymounted, a support, there being a plura said support, a plurality ofplates forming hammer locks disposed in said slots and adapted to bemoved into the path of movement of said hammers to prevent their opbeingnotches in said ham mer locks, and a securing plate adapted-to engagesaid latter notches when saidhammer locks are in'idle position therebyto socure' them in such idle position.

i JAMES POWERS.

Witnesses:

' GUSTAV DREWS, H. D. PENNEY.

ity of slots in

